WORKING GROUP 1 
PHOTOGRAPHY, EQUIPMENT AND TECHNIQUES 
page 
E. Wei ander 
Some Methods and Investigations for Determining the 
Quality of Aerial Photographs 
28 
F. L. Corten 
Rational Planning and Execution of Aerial Photography 
39 
S. A. Hempenius 
Specifications for Mirror Stereoscopes 
45 
R. P. Barrett 
Man-Machine Task Sharing in Advanced Photo Inter 
pretation Systems 
52 
A. H. Birnbaum 
Effect of Selected Photo Characteristics on Detection and 
Identification 
60